1. Remote control pairing. 2. Start or stop regularly. 3. Set time. Suitable for air parking heater with corresponding interface; LCD display is easy to read. Equipped with control button functions, manual fuel filling mode, timer start/stop, time setting, and more. Humanized design supports timer start/stop, remote pairing, convenient and quick. Widely used for parking heater controller with 12V power supply voltage, suitable for cars, trucks, etc. Application: air heater for car or bus Note: Remote control and black plug LCD switch, black plug LCD switch and black plug motherboard must be matched accordingly. Motherboard controller features: After hot start, the air in the cabin can be preheated quickly. Low power consumption 8 watts (equivalent to the energy consumption of a small light bulb), ideal for long-term parking heating. Low fuel consumption 0.1 liters per hour. Note: Installation guide not included. Professional installation is strongly recommended. The product may vary slightly between batches, including minor differences in design or color, which do not affect functionality. Color: As shown in photo Material: Plastic Package Contents: 1 x LCD Switch 1 x Remote (battery not included) 1 x Mother Board 1 x Harness (wire harness colors are random; no specific color requests accepted) Contents included only; other items not included. Note: Lighting and display differences may cause slight color variation between the image and the actual item. Measurement error allowance: +/- 1-3 cm.